From 0734d65d522eb465a43ec5d10221bed1af4fb7be Mon Sep 17 00:00:00 2001 From: Will Ayd Date: Mon, 4 Jun 2018 09:31:53 -0700 Subject: [PATCH] Updated whatsnew --- doc/source/whatsnew/v0.23.1.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/doc/source/whatsnew/v0.23.1.txt b/doc/source/whatsnew/v0.23.1.txt index f2bc81eea186b..4eedfe9922405 100644 --- a/doc/source/whatsnew/v0.23.1.txt +++ b/doc/source/whatsnew/v0.23.1.txt @@ -85,6 +85,7 @@ Indexing - Bug in :meth:`Series.reset_index` where appropriate error was not raised with an invalid level name (:issue:`20925`) - Bug in :func:`interval_range` when ``start``/``periods`` or ``end``/``periods`` are specified with float ``start`` or ``end`` (:issue:`21161`) - Bug in :meth:`MultiIndex.set_names` where error raised for a ``MultiIndex`` with ``nlevels == 1`` (:issue:`21149`) +- Bug in :meth:`MultiIndex.sort_index` which was not guaranteed to sort correctly with ``level=1``; this was also causing data misalignment in particular :meth:`DataFrame.stack` operations (:issue:`20994`, :issue:`20945`, :issue:`21052`) - I/O